[Elecraft] totally OT, except to the extent that it's QRP: LED lamps

[David Cutter]

Perhaps the time is now right to replace domestic lighting circuits with 12V 
supply, then the cost of the fitments will come down, ie no need for 
110/240V conversion to low dc for the leds.  Safer, cheaper, more reliable, 
less raw materials.  At those power levels, you could probably keep the 
original house wiring and just fit a 12V transformer/rectifier.  Easier to 
use alternative power sources, too.

Be nice if we had your prices over here.

David
G3UNA


----- Original Message ----- 
From: "wayne burdick" <n6kr at elecraft.com>
To: "Elecraft Reflector" <elecraft at mailman.qth.net>
Sent: Friday, April 03, 2009 9:59 PM
Subject: [Elecraft] totally OT, except to the extent that it's QRP: LED 
lamps


>I just replaced four gas-guzzling incandescent lamps in my dining room
> chandelier with four LED lamps that screw into the same bases. Went
> from 240 watts to 6 watts, total.
>
> The usual complaint about LED lamps is the cost. But prices are coming
> down fast: these were only about $4 each at Costco. Each contains 21
> white LEDs, and they basically last forever, which means I won't
> constantly be replacing lamps in this fixture.
>
> If the world converts to LED lighting, we won't need to build any more
> power plants, and we can all use KW amps guilt-free :)
>
> Wayne
> N6KR
>
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